8. Run the Parallel Upgrade Utility from the new Oracle home.
Run the utility as a shell command (dbupgrade on Linux and UNIX, and dbupgrade.cmd on Windows) or you can run it as a Perl command (catctl.pl).
Note: Take care for following things:
Parallel Upgrade Utility (catctl.pl) runs:
-c ‘PDB1 PDB2’ for linux or unix single quote
-c “PDB1 PDB2” for windows Double quote
-d Location of directory having file you wantt to proceed.
-e echo on while running the script.
-F force to clean previous upgrade error
-l location of directory to use spool file
-i identifers used in spool file creation.
-n for parallel
-R resume for failed phase.
-u username and prompt for password
--In Linux or Unix:
cd $ORACLE_HOME/bin
./dbupgrade